:root,
[data-theme="dark"] {
  --bg: #0f1419;
  --bg-elevated: #1a222c;
  --bg-sidebar: #0b1015;
  --border: #2a3542;
  --text: #e7ecf1;
  --text-muted: #8b9aab;
  --accent: #3d9a7a;
  --accent-hover: #4cb08c;
  --danger: #d46565;
  --success: #3d9a7a;
  --warning: #c9a227;
  --input-bg: #121820;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg: #f0f2f5;
  --bg-elevated: #ffffff;
  --bg-sidebar: #1a2330;
  --border: #d5dbe3;
  --text: #1a2330;
  --text-muted: #5c6b7a;
  --accent: #2d7a5f;
  --accent-hover: #246350;
  --danger: #c04444;
  --success: #2d7a5f;
  --warning: #a88410;
  --input-bg: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Kanit", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  color: #e7ecf1;
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0;
  border-right: 1px solid var(--border);
}

.brand {
  font-size: 1.35rem;
  font-weight: 600;
  padding: 0 1.25rem 1.5rem;
  letter-spacing: 0.02em;
}

.brand span {
  color: var(--accent);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 0.75rem;
  flex: 1;
}

.nav a {
  color: #b8c4d0;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-weight: 400;
}

.nav a:hover,
.nav a.active {
  background: rgba(61, 154, 122, 0.18);
  color: #fff;
}

.sidebar-foot {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: #8b9aab;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal.modal-wide {
  width: min(560px, 100%);
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.content {
  padding: 1.5rem;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
}

.stat .label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.stat .value {
  font-size: 1.75rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--accent);
  color: #fff;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
}

.btn-sm {
  padding: 0.3rem 0.65rem;
  font-size: 0.85rem;
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.flash.success {
  background: rgba(61, 154, 122, 0.2);
  border: 1px solid var(--success);
}

.flash.error {
  background: rgba(212, 101, 101, 0.2);
  border: 1px solid var(--danger);
}

.raw-key {
  font-family: ui-monospace, monospace;
  word-break: break-all;
  background: var(--input-bg);
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px dashed var(--warning);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1rem;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(61, 154, 122, 0.15), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(45, 90, 120, 0.2), transparent 45%),
    var(--bg);
}

.login-card {
  width: min(400px, 92vw);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 0.25rem;
  font-weight: 600;
}

.login-card .sub {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  font-family: inherit;
}

table.dataTable {
  width: 100% !important;
  color: var(--text);
}

table.dataTable thead th {
  border-bottom: 1px solid var(--border) !important;
}

table.dataTable tbody td {
  border-top: 1px solid var(--border) !important;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
}

.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
  color: var(--text-muted) !important;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: rgba(61, 154, 122, 0.2);
  color: var(--accent);
}

.badge.revoked {
  background: rgba(212, 101, 101, 0.2);
  color: var(--danger);
}

.muted {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid;
  place-items: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  width: min(440px, 100%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}

@media (max-width: 800px) {
  .layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}